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प्रश्न
State two characteristics of the primary coil as compared to its secondary coil of a step-up transformer.
उत्तर
Two characteristics of the primary coil as compared to its secondary coil:
- The number of turns in the primary coil is less than the number of turns in the secondary coil.
- A thicker wire is used in the primary coil as compared to that in the secondary coil.
संबंधित प्रश्न
Draw a labelled diagram of a step-up transformer and explain how it works.
Draw a labelled diagram of a device you would use to transform 200 V a.c. to 15 V a.c. Name the device and explain how it works. Give its tow uses.
Name the coil of which the wire is thicker in a step up transformer. Give reason to your answer.
Differentiate step up and step down transformer.
A portable radio has a built in transformer so that it can work from the mains instead of batteries. Is this a step up or step down transformer? Give reason.
Explain two types of transformer.
The transformation ratio in the step-up transformer is ______
Name the device used to transform 12 V a.c. to 200 V a.c.
The output current of a transformer in which the voltage is stepped down is usually higher than the input current. Explain why.
Name the tranformer used in the power sub-station, state the function of each transfomer.
